Apparatus for mixing dough.



No. 719,070. PATENTED JAN. 27, 1903.

H. H. WILSON. APPARATUS FOR MIXING DOUGH.

APPLICAT 0N FILED OUT. 23, 1902.

N0 MODEL. 5 3 SHEETS-SHEET l WITNESSES:

INVENTOR I 4 H arryBqilzsfilsun Z $4, 6. m0 EY No. 719,070. PATENTBDJAN. 27, 1903.

H. H. WILSON.

APPARATUS FOR MIXING DOUGH.

APPLICATION FILED OUT. 23, 1902. N0 MODEL.

3 SHEETS-$HBET 2. 8 7

WITNESSES. INVENTOR Harryj-flzflsan aw. y 3 l; 5

W cf /mdf Qfi ATTORNEY No. 719,070. PATENTED JAN. 27, 1903.- H. H.WILSON. APPARATUS FOR MIXING DOUGH,

APPLIGATION FILED 00123, 1902.

3 SHEETS-SHEET 3.

N0 MODEL Unite tarts HARRY H. WVILSON, OF NEW'ARK, NEW JERSEY.

APPARATUS FOR MIXING DOUGH.

SPECIFICATION forming part Of Letters Patent N0. 719,070, dated January27, 1903.

Application filed October 23,1902. Serial No. 128,385. (No model.)

To all whom. it ntcty concern:

Be it known that I, HARRY I-I. WVILSON, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Apparatus for MixingDough; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to figures of referencemarked thereon, which form a part of this specification.

The present invention has reference to a novel construction of apparatusfor mixing dough, with a view of providing a simple andcheaply-constructed apparatus of the character hereinafter moreparticularly set forth in which the flour is sifted into the water,yeast, and other'ingredients in sufficient quantities as required formixing a proper bread, pie, biscuit, or other dough.

The invention has for its further object to provide a novel constructionof dough-mixing compartment with aflour-sifting compartment in which theflour is contained directly above the said dough-mixing compartment, asuitable opening or openings being made in the shell or framework whichsurrounds the mixing-compartment of the apparatus, thereby allowing fora constant admission of air into the dough-mixing compartment during theprocess of mixing the dough, and whereby a greater amount of gluten isproduced than when the air is excluded during the process of mixing in aclosed or nearly closed compartment.

A further object of this invention is to provide a novel form ofapparatus for mixing dough, the dough-mixing compartment being made inseparable halves, one of which carries the flour holding or siftingcompartment, which can be removed from the lower half of themixing-compartment after the dough has been made and then replaced by asuitable cover, the device then being capable for use as a rising-panwhen placed upon a range or other heater.

With these various objects of my invention in view the same consists inthe novel construction of apparatus for mixing dough hereinafter setforth; and, furthermore, this invention consists in the various novelarrangements and combinations of parts, as well as in the details of theconstruction thereof, all of which will be fully described in theaccompanying specification and then finally embodied in the clauses ofthe claim.

The invention is clearly illustrated in the accompanying drawings, inwhich- Figure 1 is a front elevation of an apparatus embodying theprinciples of my present invention. Fig. 2 is an end view of the same,and Fig. 3 is a transverse vertical section taken on line 3 3 in saidFig. 1. Fig. 4 is a plan or top view of the apparatus, and Fig. 5 is asimilar view of the lower half-section of the mixing-compartment of theapparatus and its removable agitator. Fig. 6 is a perspective View ofthe said lower half-section of the said mixin g-compartment providedwith a lid to enable this much of the apparatus to be used as arising-pan. Fig. 7 is a detail vertical section of a portion of theflour containing or sifting compartment, representing in connectiontherewith a part of the agitatorbar therein and the bearing, connectedwith the side of said compartment, in which a portion of said bar isarranged to oscillate; and Fig. 8 is a detail horizontal section of theparts represented in said Fig. 7. Fig. 9 is a perspective view of one ofthe holding or looking catches employed with the mixing-compartment ofthe apparatus.

Referring now to the several figures of the drawings, the referencecharacter 1 indicates the complete apparatus for the mixing of dough,the same comprising a lower mixingcompartment2 and an upper flourcontaining or sifting compartment 3. The said mixingcompartment 2consists, essentially, of a pair of separable semicylindrical shells ormembers 4 and 5, adapted to be fitted upon each other on theirrespective marginal flanges 6 and 7, as clearly indicated in Figs. 1, 2,and 3 of the drawings, suitably-constructed holding or looking devices,as S, which are preferably pivotally attached to the flange 6 of thelower shell or member 4, being employed for suitably securing the uppershell or member 5 upon the said lower shell or member 4 during theprocess of mixing, as illustrated. The said lower shell or member 4 isalso pro vided with suitable standards or supports 9, while the saidupper shell or member5 is made with an opening 10, for the purposes tobe hereinafter more particularly specified. The said shells or members 4and 5 are provided in their ends with suitably-arranged semicircularopenings 11, (see Fig. 6,) which form bearings for the reception of anagitator or mixer shaft 12. This shaft is made with shoulders 13 orother means to prevent any lateral movement of the shaft in saidbearings, and suitably secured upon the end of said shaft 12 is a crank14 for producing a rotary motion of said shaft. The said shaft 12 isalso provided with any suitable number of arms 15, each arm beingprovided at its free end with a laterally-extending finger 16. Thesefingers, which move near the inner cylindrical surface of themixing-compartment, are made with the comparatively sharp cutting edges17 for suitably cutting and spreading the dough and while passingthrough the dough lifting the same in the manner of the fingers of aperson mixing dough. These fingers 16, as will be seen from aninspection of Fig. 5, extend in opposite directions, so as to insure amore thorough mixing process of the dough during the rotary movements ofthe arms 15 past the opening 10 in the said upper shell or member 5.

The previously-mentioned flour containing or sifting compartment 3consists,essentially, of a semicylindrical or other suitabletroughshaped shell or member 18, provided with a sieve or screen-covered lower portion 19, which is arranged slightly above the opening10 of the mixing-compartment 2, so as to provide fora free passage ofthe air into the said mixing-compartment in the direction of the arrowsclearlyindicated in Fig. 3 of the drawings. In order that such properpassages may be provided between the said shell or member 18 and theupper shell or member 5 of the mixing-compartment, suitable supports 28are employed, these supports being secured at their respective ends tothe said shells or members 18 and 5, substantially as illustrated in theseveral figures of the drawings. Within the said sifting-compartment 3 Ihave arranged an oscillating agitator for stirring up the flour in saidcompartment 3, and thereby causing it to be forced through the screen orsieve into the mixing-compartment 2, while the agitator-arms in saidlatter compartment are being revolved by means of the crank 14 on theend of the shaft 12. This oscillating agitator in the compartment 3consists, essentially, of a lower bar or rod 20, side rods or bars 21 ateach end of said bar or rod 20, which are passed through and are looselymounted in bearings 22, connected with the inner surfaces of the endpieces of said shell or member 18, and a cross bar or red 23, connectedwith the upper end portions of the said side rods or bars 21, all ofwhich is clearly illustrated in Figs. 3, 7, and 8 of the drawings. Thesaid side rods or bars 21 extend directly above the upper edges of thesaid shell or member 18 and with the said lower bar or rod 20 may bemade to oscillate in a backward and forward direction by means of thesaid cross rod or bar 23, suitable stops 24 being provided to'limit theoscillatory movements of the cross rod or bar 20 the desired distanceacross the width of the screen or sieve.

The holding or looking catches 8 are preferably of the shape andconstruction illustrated in the drawings; but it will be evident thatany other suitably-constructed devices for the same purposes may beemployed, if desired. When the said catches 8 are turned into theirunlatched positions, (indicated in Fig. 5,) then by raising theflour-agitator to the vertically-dotted position, (indicated in Fig. 3,)so as to bring the lower bar or rod 20 against the lower edges of thebearings 22, the connected shells or members 18 and 5 can be lifted fromthe lower shell or member 4 and carried about by means of the cross rodor bar 23, which thus serves as a handle for that purpose. When thedough has been properly mixed in the manner to be presently describedand these shells or members 18 and 5, as well as the shaft 12 and itsarms 15 and fingers 16, have been removed from their operative relationwith the lower shell or memher 4, a suitable cover or lid 25, which isprovided with a handle, as 26, and suitably-disposed openings orperforations 27 for ventilation can be placed upon the said lower shellor member 4, latched in place by means of the devices 8, as clearlyindicated in Fig. 6, and then placed upon a range or heater to allow themixed dough to rise.

The manner of using the apparatus is briefly as follows: Prior to theplacing of the shell 5 and dough agitator or mixer upon the lower shellor member 4 the liquid substance, in the form of water, yeast, and otheringredients, for producing a dough for bread, pies, cake, biscuits,rusks, and the like is placed in the said lower member 4'. The doughagitator or mixer is then placed in position and the shell or member 5,with its connected shell or member 18, also arranged upon the lowershell or member -.t and latched in place by means of the devices 8. Theproper quantity of flour is then placed in the shell or member 18. Whilerevolving the arms 15 and their fingers 16, the flour in the upper shellor member 18 is simultaneously stirred through the sieve or screen bythe oscillatory movements of the bar or rod 20 in the manner hereinabovestated, whereby the loose flour particles become thoroughly immersed inthe dough liquid, and during the revolutions of the arms 15 and theirfingers the constant addition of flour is thoroughly taken up by thedough, and thereby produces a light dough. After the dough has beenproperly mixed the shells or members 18 and 5 and the dough agitator ormixer shaft and parts are removed and replaced by the cover or lid 25for rising purposes. While the arms 15 are being revolved, theirhorizontally arranged fingers 16 will carry the pasty dough massdirectly past the .opening 10 and in close proximity to the air which isentering the mixing-chamber 2 in the direction of the arrows, asindicated in Fig. 3 of the drawings, thereby causing a complete andthorough commingling of the air with the dough during its mixing processand producing the gluten to a greater extent than is possible in aclosed mixing-chamber.

The arrangements and constructions of the various parts of the apparatusare so simple that they can be easily manipulated, can be quicklyseparated, and are readily kept clean.

I am aware that changes may be made in the various arrangements andcombinations of the parts without departing from the scope of my presentinvention. Hence I do not limit my invention to the exact arrangementsand combinations of the parts as described in the previous specificationand as illustrated in the accompanying drawings, nor doI confine myselfto the exact details of the construction of the said parts.

Having thus described my invention, what I claim is- 1. A dough-mixingapparatus, comprising a lower mixing-compartment having an opening, ashaft mounted in said mixing-compartment, radially-disposed arms on saidshaft, and laterally-extending fingers on some of said arms, aholding-compartment provided with a sieve located above the said openingin the mixing-compartment, and means connected with said flour-holdingcompartment and the mixing-compartment whereby said flour-holdingcompartment is arranged some distance above the mixing-compartment toprovide an unobstructed air-passage for the air into themixing-compartment, bearings in said flour-holding compartment, and anagitator adapted to oscillate in said bearings, consisting, essentially,of a lower cross-rod, a pair of upwardly-extending rods connected withsaid crossrod and passing through said bearings, and a connecting-rodforming a handle between the upper portions of said upwardly -extendingrods, substantially as and for the purposes set forth.

2. In an apparatus for mixing dough, the combination, of amixing-compartment divided into detachably-connected upper and lowermembers, the upper member being provided with an opening, the saidmembers being provided with semicircular openings, forming bearings, ashaft removably arranged in said bearings, radially-disposed arms onsaid shaft, and laterally-extending fingers on some of said arms, and asieve-provided flour-holdingv compartment supported above and connectedwith the said upper member of the mixing-compartment to provide anunobstructed air-passage for the air into the said mixing-compartment,bearings in said flour-holding compartment, and an agitator adapted tooscillate in said bearings,

consisting, essentially, of a lower cross-rod, a pair ofupwardly-extending rods connected with said cross-rods, and passingthrough said bearings, and a connecting-rod formingahandle between theupper portions of said upwardly-extending rods, substantially as and forthe purposes set forth.

.3. In an apparatus for mixing dough, the combination, of amixing-compartment di vided into detachably-connected upper and lowermembers, the upper member being provided with an opening, marginalflanges on said members adapted to be placed upon each other,holding-latches adapted to be brought in holding engagement with saidflanges to cause the locked engagement of the upper and lower members ofthe said mixing-compartment, and a sieve-provided flour-holdingcompartment supported above and connected with said upper member of themixing-compartment to provide an unobstructed air-passage for the airinto the said mixing-compartment, substantially as and for the purposesset forth.

4. In a machine formixing dough, the combination, with a mixing-chamber,a shaft therein, and radially-extending arms on said shaft, providedwith fingers at their free ends extending laterally and in oppositedirections, of a sieve-provided flour-holding compartment provided withbearings, and an agitator adapted to oscillate in said bearings,consisting, essentially, of alower cross-rod, a pair ofupwardly-extending rods connected with said cross-rod and passingthrough said bearings, anda connecting-rod forming a handle between theupper portions of said upwardlyextending rods, substantially as and forthe purposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 21st day of October, 1902.

HARRY II. WILSON.

Witnesses:

FREDK. G. FRAENTZEL, GEO. D. RICHARDS.

